Abstract:
:Whole-genome sequencing (WGS) of Staphylococcus aureus is increasingly used as part of infection prevention practices. In this study, we established a long-read technology-based WGS screening program of all first-episode methicillin-resistant Staphylococcus aureus (MRSA) blood infections at a major urban hospital. A survey of 132 MRSA genomes assembled from long reads enabled detailed characterization of an outbreak lasting several months of a CC5/ST105/USA100 clone among 18 infants in a neonatal intensive care unit (NICU). Available hospital-wide genome surveillance data traced the origins of the outbreak to three patients admitted to adult wards during a 4-month period preceding the NICU outbreak. The pattern of changes among complete outbreak genomes provided full spatiotemporal resolution of its progression, which was characterized by multiple subtransmissions and likely precipitated by equipment sharing between adults and infants. Compared to other hospital strains, the outbreak strain carried distinct mutations and accessory genetic elements that impacted genes with roles in metabolism, resistance, and persistence. This included a DNA recognition domain recombination in the hsdS gene of a type I restriction modification system that altered DNA methylation. Transcriptome sequencing (RNA-Seq) profiling showed that the (epi)genetic changes in the outbreak clone attenuated agr gene expression and upregulated genes involved in stress response and biofilm formation. Overall, our findings demonstrate the utility of long-read sequencing for hospital surveillance and for characterizing accessory genomic elements that may impact MRSA virulence and persistence.
journal_name
J Clin Microbioljournal_title
Journal of clinical microbiologyauthors
Sullivan MJ,Altman DR,Chacko KI,Ciferri B,Webster E,Pak TR,Deikus G,Lewis-Sandari M,Khan Z,Beckford C,Rendo A,Samaroo F,Sebra R,Karam-Howlin R,Dingle T,Hamula C,Bashir A,Schadt E,Patel G,Wallach F,Kasarskis A,Gidoi
10.1128/JCM.01261-19subject
Has Abstractpub_date
2019-11-22 00:00:00issue
12eissn
0095-1137issn
1098-660Xpii
JCM.01261-19journal_volume
57pub_type
杂志文章abstract::Because of their biofilm-forming capacity, invasive Staphylococcus epidermidis isolates, which cause the majority of nosocomial catheter-related bloodstream infections (BSIs), are thought to be selected at the time of catheter insertion from a population of less virulent commensal strains. This fact allows the predict...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
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abstract::mRNAs of human papillomaviruses (HPV) 16 and 18 were detected in cancer-derived cell lines and genital tract biopsy specimens by a novel hybridization assay. Biotinylated whole genomic HPV DNA probes were hybridized in solution to extracted total nucleic acids. Hybrids between the labeled probes and RNA transcripts we...
journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.29.5.968-974.1991
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abstract::A 42-plex clustered regularly interspaced short palindromic repeat (CRISPR)-based typing technique (spoligotyping) was recently developed at the French National Reference Center for Legionella. It allows the subtyping of the Legionella pneumophila sequence type 1/Paris pulsotype. In this report, we present the transfe...
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.32.12.3002-3007.1994
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abstract::A new serological assay, the recombinant flow cytometric immunofluorescence assay (r-FIFA), was developed for the early detection of human immunodeficiency virus type 1 (HIV-1) antibodies by using recombinant insoluble forms of HIV-1 Gag-p45, Gag-gp41 chimeric protein, gp160, Po197 polyprotein as antigens and autologo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.34.6.1412-1419.1996
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abstract::Rhodococcus equi infection is increasing in regions with high HIV prevalence worldwide. The microbiological features and clinical mimicry of tuberculosis infection pose diagnostic challenges in high-tuberculosis-incidence settings. We present two HIV-associated cases of R. equi infection from Vietnam and discuss the u...
journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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journal_title:Journal of clinical microbiology
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abstract::The polymerase chain reaction was used to detect human herpesvirus 6 (HHV-6) DNA in peripheral blood mononuclear cells from patients with exanthem subitum. Amplified products were detected by agarose gel electrophoresis and dot blot hybridization with a cloned DNA probe. No cross-hybridization with DNAs of five other ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.28.5.970-974.1990
更新日期:1990-05-01 00:00:00
abstract::The use of rapid tests for human immunodeficiency virus (HIV) has become standard in HIV testing algorithms employed in resource-limited settings. We report an extensive HIV rapid test validation study conducted among Ugandan blood bank donors at low risk for HIV infection. The operational characteristics of four read...
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.12.3601-3604.1998
更新日期:1998-12-01 00:00:00
abstract::Nearly 400,000 people worldwide are known to have been infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) beginning in December 2019. The virus has now spread to over 168 countries including the United States, where the first cluster of cases was observed in the Seattle metropolitan area in Was...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.00557-20
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abstract::Since the introduction of antiviral compounds such as lamivudine and famciclovir in the treatment schedules of patients with chronic hepatitis B virus (HBV) infection, the accumulation of a variety of mutations in the HBV polymerase gene has been observed. The selection of these mutations is generally considered the c...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.38.2.702-707.2000
更新日期:2000-02-01 00:00:00
abstract::In summary, it is clear that in vitro susceptibility testing can predict outcome in selected clinical situations. The clearest data are from the fluconazole-treated AIDS patients with oropharyngeal candidiasis. In this setting, the homogeneity of the underlying immune defect, combined with the ease of identification a...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章,评审
doi:10.1128/JCM.34.3.489-495.1996
更新日期:1996-03-01 00:00:00
abstract::Leptospira is a highly diverse genus comprising many species and serogroups in Brazil as well as all over the world. However, a study by arbitrarily primed PCR of 44 leptospiral strains isolated from humans during three different outbreaks in Brazilian urban centers reveals that 43 of 44 isolates exhibit very similar ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::The RD2 region of the internalization-associated gene prtF1, which encodes the fibronectin-binding repeat domain type 2 of protein F1, plays a crucial role in the entry of group A streptococci (GAS) into epithelial cells. A molecular study of the variability of the RD2 region was carried out with 77 independent Italia...
journal_title:Journal of clinical microbiology
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doi:10.1128/jcm.42.2.639-644.2004
更新日期:2004-02-01 00:00:00
abstract::A monoclonal antibody (MAb) immunoglobulin G2a (2125) was produced against a 60-kDa Legionella heat shock protein (HSP), recognizing a unique epitope common to all species of the genus Legionella. The antibody reacted in the immunoblot with 59 Legionella species and serogroups that were tested and showed no cross-reac...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.29.2.346-354.1991
更新日期:1991-02-01 00:00:00
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:
更新日期:1978-07-01 00:00:00
abstract::Pneumococcal colonization was studied in 19 children monitored from birth through the age of 2 years. For this purpose, pneumococcal isolates were characterized by capsular typing, restriction fragment end labeling (RFEL), and penicillin-binding protein (PBP) genotyping. Fifty-eight isolates were collected and were fo...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.36.8.2248-2253.1998
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journal_title:Journal of clinical microbiology
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doi:10.1128/JCM.27.11.2497-2501.1989
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journal_title:Journal of clinical microbiology
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.24.6.1107-1108.1986
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abstract::Quantitation of hepatitis C virus (HCV) RNA in plasma and serum samples is a costly procedure in both time and reagents. Additionally, cell-associated viral RNA may not be detected. This study evaluated the accuracy of HCV RNA quantitation in small-volume whole-blood (WB) samples, which would be appropriate for point-...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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abstract::Fourth-generation human immunodeficiency virus (HIV) screening immunoassays reduce the diagnostic window between infection and diagnosis by the inclusion of HIV p24 antigen detection together with HIV antibody detection in the same test. We compared third- and fourth-generation HIV immunoassays and a dedicated HIV p24...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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abstract::Chronic hepatitis B virus (HBV) infection via perinatal transmission is common in the Asia-Pacific region, but related quasispecies (QS) characteristics are not yet defined. To investigate the homologous, full-length HBV QS after perinatal infection and their clinical implications, five pairs of mother-daughter patien...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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更新日期:2014-05-01 00:00:00
abstract::This paper describes the first isolation of a new Shigella flexneri serotype, designated 4s, in Beijing, China. Genotypic and phenotypic profiling suggests that this isolate is a clone of the S. flexneri serotype X variant reference strain. Of particular concern is the multidrug resistance exhibited by this isolate. ...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
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更新日期:2011-03-01 00:00:00
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journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.06456-11
更新日期:2012-06-01 00:00:00
abstract::Analysis of the electrophoretic profiles of the outer membrane proteins could be used to differentiate Campylobacter jejuni (16 strains) from Campylobacter coli (10 strains). This observation was confirmed by the study of DNA homology obtained by a quantitative filter hybridization method. The hippurate hydrolysis tes...
journal_title:Journal of clinical microbiology
pub_type: 杂志文章
doi:10.1128/JCM.27.5.1072-1076.1989
更新日期:1989-05-01 00:00:00